Patent 11052238 was granted and assigned to Magenta Medical on July, 2021 by the United States Patent and Trademark Office.
Apparatus and methods are described for use with a tributary vessel of a subject that supplies a vein of the subject. Blood within the tributary vessel is mechanically isolated into a compartment that is separated from blood within the vein. Blood flow from the tributary vessel to the vein is controlled by pumping blood from the compartment to the vein. Other applications are also described.